Finding the Fourth Proportional to 292,116.06, 403,121.34 and 157,980.06
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Solution
The fourth proportional to 292,116.06, 403,121.34 and 157,980.06 is: 218,013.12
Step by Step Solution
- Step 1: Write the proportion equation
292,116.06 : 403,121.34 = 157,980.06 : x - Step 2: Convert to fraction form
292,116.06/403,121.34 = 157,980.06/x - Step 3: Cross multiply
292,116.06x = 403,121.34 × 157,980.06 - Step 4: Simplify right side
292,116.06x = 63,685,133,480.48 - Step 5: Solve for x
x = 63,685,133,480.48/292,116.06 - Step 6: Final answer
x = 218,013.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.